Compound Monocular Microscope

This simple compound monocular microscope, whose maker is unknown, was produced sometime around 1860. The model featured below was redrawn from photographs of the original microscope, which is part of the Billings microscope collection at Walter Reed Army Hospital in Washington DC.

The turned wooden base is approximately two and a half inches in diameter and supports a solid brass pillar that is screwed into the base. A washer-shaped brass stage is attached to the pillar beneath the body tube, which is also made of brass. There is a single eyepiece, with two convex lenses, and an objective screwed into the nosepiece.